Answer:
La opción correcta a la cual se refiere la frase "el ciudadano es el eslabón clave en esta cadena de la sostenibilidad" es:
A. La viabilidad de una ciudad depende de sus habitantes.
Explanation:
<h3> <u>
Sustainable development of society</u></h3>
Sustainable development of society involves in organizing principle to attain goals for the people enrichment and providing the "ecological ability of natural systems" to provide natural resources.
Sustainable development of the society tells us about the living conditions of the people that determines the continuation to meet the needs of humans without affecting the solidity and uprightness of the nature and ecosystem. It aims at merging the economic and environmental goals.
They always show evolutionary relationships of organisms.
The mass of the acetic acid is 1.512 g.
<h3 /><h3>What is Molarity?</h3>
molarity is the concentration of a substance in mol per dm³
From the question,
The number of moles contained in the 30 mL vinegar is
- n = (0.84×30)/1000
- n = 0.0252 mol.
the molar mass of vinegar is calculated below.
- m.m of (HC₂H₃O₂) = [1+(12×2)+(1×3)+(16×2)]
- m.m = (1+24+3+32]
- m.m = 60 g/mol.
To calculate the mass of acetic acid, we use the formula below.
- R.m = n×m.m............. Equation 1
Where
- R.m = mass of acetic acid.
Substitute these values into equation 1
- R.m = (0.0252×60)
- R.m = 1.512 g.
Hence, The mass of the acetic acid is 1.512 g.
Learn more about molarity here: brainly.com/question/20383725
